How about some more? Adding "teacher" to my list leaves us closer to "few" than "many".

Note that the vast majority of engineers aren't licensed....

going back to the original statement of "Examples include credential requirements for many different occupations, licensing laws, and job eligibility."

Licensing laws cover plumbers, electricians, massage therapists,barbers, air conditioning contractors, auctioneers, boxing (judges, promoter, referees, boxers themselves, managers), cosmetologist(and their schools), tow truck drivers, moving companies, temp agencies, elevator contractors and inspectors.

>> going back to the original statement of "Examples include credential requirements for many different occupations, licensing laws, and job eligibility."

Yes, let's. One of the claims was that there were credential requirements for many different occupations. (Licensing for other things is a separate claim.) I've listed a couple of examples and we're nowhere near many.

I'm perfectly willing to agree that state imposed licensing is widespread, but that's a separate claim. I note that licensing is largely independent of public supported schools.